Question

what is virus and why it is difficult to take out its vaccinr
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Answer 1

Answer:

Covid-19

Explanation:

that's the virus

Answer 2

Answer:

virus is a micro-organism.

Explanation:

it is difficult to take out its vaccine but not impossible. Vaccine is made by the weakened or dead version of the organism. But viruses do not die at all. they are parasites they can leave 100-200 years. Viruses can't be killed by antibiotics.

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